We signed a defensive alliance with Bulgaria 2 years ago, how can that pose a threat to Bulgaria? Also, we are not waging a war of aggression towards our neighbour, another show of "Teutonis Hipocraticus", we came to the defence of Korea independence when Japan invaded them out of the blue, so we declared war to Japan after we tried to use diplomacy to avoid bloodshed, after that Germany declared on Russia over the basis that we were "against the independence of Japan", so Germany is trying to use our casus belli against us, and yet call us aggressors while they are doing the same thing.
A clear fault of Germany foreign politics. Germany alone has just show the world that they are a country that they lack the honour. They don't care for Bulgaria, they never did....
...just remember the Congress of Berlin of 1878, were Russia was fighting the Ottoman Empire to liberate Bulgaria. Otto von Bismarck, Chancellor of Germany at that time, did everything he could to avoid a "Big Bulgaria". Now they come with promises of being allies of Bulgaria, when they were the first ones to try to weaken it!
Germany, a country who accuses everyone of being warmongers while having the biggest and most advanced standing army in the planet.